Wringer.



W. ROBERTSON. WRINGER.

APPLICATION I-ILED AMLO, 1913` l 1 3 l ,087. Patented Mar. 9, 1915.

STATES PATENT OFFICE.

WILLIAM ROBERTSON, 0F ERIE, PENNSYLVANIA, ASSIGNOB. vT0 LOVELI; MANUFAC-TUBING COMPANY, 0F ERIE, PENNSYLVANIA, CORPORATION OF'PENNSYLVANIA.

winnen.

Speciilcation of Letters Patent.

Application led April 9, 1913. Serial No. 760,013.

T0 all 'whom it may concern.'

Be it known that I, WII'LIAM ROBERTSON, a citizen of the United States,residing at Erie, in the county of Erie and State of Pennsylvania, haveinvented new and useful Improvements in Wringers, of which the followingis a specification.

' This invention relates to wringers and consists in certainimprovements in the construction thereof as' will be hereinafter fullydescribed and pointed out in the claims.

In the use of'wringers, especially power- Wringers, it has becomedesirable to have some means for instantly releasing the pressure on therolls so as to o'bviate the danger of injury to an operator who may getcaught by the rolls and also to release any materia-lI that may be woundaround the rolls.

The object of the invention is to provide a simple and eiiicientmechanism for this type of wringer.

The invention is illustrated in the accompanying drawings as followsFigure 1 is a plan view. of the wringer. Fig. 2 a side elevation, partlyin section on the line 2 2 in Fig. 3. Fig. 3 an end elevation, partlyinsection on the line 3-3 in Fig. 1. Fig. 4 is a section on the line 4-4in Fig. 2, the view being toward the top of the wringer.

1 and 2 mark the side stiles of the frame, 3 the groove slot formed inthe side stiles, 4 the bearings mounted in the slots 3, 5 and 6 theshafts for the rolls which are journaled in the bearings, and 7 and 8the rolls carried by the shafts 5 and 6. The shaft 6 has the extension 9which may be attached to a power mechanism in any manner desired.Springs 10 are arranged in the slots 3 and are designed to exertpressure on the rolls. A presser bar 11 has the metal ends resting onthe tops of the springs. A top rail 13 is arranged between the sides ofthe stiles and rests on the shoulders 14 at each side of the slots 3.The top rail is clamped between the sides of the stiles by -the bolts15. This structure so far as described is one in common use.

The top rail has the perforations 16 concentric with the springs 10.Each of these perforations has a lateral extension 17 forming throughthe rail what -is commonly known as a key-hole slot. A plate 18 issecured to the bottom of the rail one for each end of the rail and this.has the perforation and extension- 19 forming a key-hole slot incontinuation of -the perforation 16 and extension 17. A nut 20 isslidingly and rotaf tively mounted in the perforation 16. This has aflange 21 on its upper end which limits its downward movement and thelugs or projection 22 of a size to pass through the extension 17 andprojects into the slot 19.

The projection is so arranged that when thev nut is provided with an arm24 and the lever 23 and arm 24 are connected by a link 25 extendingacross the top of the wringer. ByA

Patented Mmes, 1915.

swinging one of the nuts by means of the lever 23 both nuts are broughtto the position shown in dottedy lines in Fig. 1 `and' are thus lockedin place. By swinging them to the -positionbringing the projections intoalinement with the extensions 19, the nuts are instantly released andcan slide upwardly in the perforations. A stop 26 is arranged on one ofthe nuts in position to come into contact with the link 25. When broughtto this position, the parts are lockedA as shown in Fig. 1. Pressurescrews 27 extend through the nuts 2O and operate against the pressurebar 11 to adjust the springs 10 in the ordinary manner.

It will be understood that in the normal use of the wringer, the nutsremain in the locked position andthe wringer is used asa wringer isordinarily used. When, however, an accident occurs and it is desired torelease the pressure onv the rolls the lever 23 is swung in thedirection of the dotted line Fig. 1 and this brings the projections intoalinement with the extensions 17 and the pressure on the springs isinstantly released. The pressure screws 27 may then be turned out andthe nuts 20 can then be passed through the perforations and readilylocked in position and pressure is then again Aapplied through theoperation of the screws.

It Will be observed that with this structure there is a positive lock ofthe nuts and at the same time there is a great leverage with relation tothe catch so as to overcome the friction exerted by the catchI on theplate. It Will be understood that a considerable pressure is exerted bythe screws on the springs and that this leverage in moving the catch isdesirable in making an easy working release. This is of great importancewhen it is understood that this release is to be accomplished where :theoperator is caught with great rapidity andloitten at an inconvenientposition. It will also be observed that the rail is. firmly clamped soasv to support the frame and that the parts are verysimple in theirconstruction adding but little to the weight of the ordinary wringer.

What I claim as new is 1. In a clothes wringer, the combination of apresser roll.; a frame in which the rolls are mounted comprising as apermanent member of the frame a top rail, said top rail having` akey-hole slot therein with a substantially flat surface on the underside of the rail adjacent to the slot; a springr eX- erting pressure onthe roll; a rotary catch .arranged in said slot, said catch having alateral projection thereon adapted to engage the underside surface ofthe rail when the catch is turned, said catch being in the form of a nutfor holding the spring yunder pressure, the pressure being in thedirection of the axis' of the catch; and a presser screw extendingthrough the catch vor adjusting the pressure on the spring. l

2. In a clothes wringer, the combination of presser rolls; a frame inwhich the rolls are mounted comprising a top rai-.1; springs arranged ateach end of the rolls and 'ex-V Y tending upwardly; rotary catchesswiveled in the top rails for holdingthe springs under pressure, thepressure on the catch being in an axial direction, saidcatch havingprojections interlockingwith the rail and adapted to be released by arotary motion; a screw arranged in each catch and each adapted to adjustone of the springs; and a connecting means between said catches wherebythey may bek rotated simultaneously. v v

3. In a clothes-wringen the combination of presser rolls; a framecomprising. side stiles in which the rolls are mounted and a top rail;springs arranged at each end lof the rolls and extending upwardly' inthe side Stiles; nuts rotatively and slidingly mounted in the r'ailabove the springs, said nuts having interlocking projections thereon;means on the rail locking said projections and adapted to release thenuts when the nuts are rotated; screws in the nuts adjusting thepressure on the springs; a link connecting said nuts whereby they maybesimultaneously operated; and a stop. on one of the nuts co-acting withthe link to stop the nut in locking position.

In testimony whereof I have hereunto set` my hand in the presence of twosubscribing witnesses.

WILLIAM nonnnrson;

Witnesses:

B. M. HARTMAN. S. C. Hass.

